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For more information, see System Views (Transact-SQL). Wide Tables Wide tables use sparse columns to increase the total of columns that a table can have to 30,000. Sparse columns are ordinary columns that have an optimized storage for null values. Sparse columns reduce the space requirements ...
System information schema views System stored procedures System tables Transact-SQL (T-SQL) Reference Transact-SQL (T-SQL) Reference Date & time hierarchyid methods (database engine) Numeric String & binary Spatial geography & instances (geography Data Type) Spatial geometry & instances (geometry Dat...
These views can help you identify queries, temporary tables, or table variables that are using large amounts of tempdb space.For example, use the following example script to obtain the tempdb space allocated and deallocated by internal objects in all currently running tasks in each session:...
difference between updatable views and non-updatable views Difference of Dates in Millisecond Disable or block TRUNCATE command DISABLE Trigger ALL on database not working disadvantages of columnstore index disadvantages of partition table? Disconnect all connections disconnect all the users from database ...
(ngram_token, 20) AS ngram_idf, count_vectorizer(stp_token, 13) AS cnt_vec_comments, tf_idf(token_comments, 10, 1) AS cmts_idf, vector_assembler(array(cmts_idf, viewsgot, ohe_add_comments, ngram_idf, cnt_vec_comments)) AS features ) OPTIONS(MODEL_TYPE='logistic_reg', LABEL='...
are also dropped. A history table or a ledger view can't be dropped directly. The system enforces asoft-deletesemantics when dropping ledger tables and its dependent objects – they aren't actually dropped, but instead they're marked as dropped in system catalog views and renamed. For more...
Object Explorer Added Table-Valued Functions node within the Programmability > Functions node for Synapse. Query Editor Updated lock icons in the query editor toolbar to be color-aware. Query Editor Addressed error "Unable to query transaction count. The SQL text editor window will close without ...
For more details, see "SQL Server Extended Events Dynamic Management Views." Predicates Predicates are the method used to filter events using a set of logical rules before the events are consumed. Predicates can be simple, such as checking that one of the columns returned in the event payload...
GreatSQL vs MySQL 1.主要特性GreatSQL 8.0.32-26MySQL 8.0.32 开源 ACID 完整性 MVCC 特性 支持行锁 Crash 自动修复 表分区(Partitioning) 视图(Views) 子查询(Subqueries) 触发器(Triggers) 存储程序(Stored Programs) 外键(Foreign Keys) 窗口函数(Window Functions) ...